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Embedded modem eliminates dedicated crystal oscillator

Posted: 25 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:tdk semiconductor? 73m1903? embedded modem? analog front end? afe?

The 73M1903 embedded modem analog front-end (AFE) from TDK Semiconductor Corp. eliminates the need for a dedicated crystal oscillator, features programmable sample rates, and supports data rates of up to 56Kbps.

Available in 20-pin SOICs and 32-pin TQFPs, the AFE is suitable for DSP- or RISC-based soft modem applications such as multi-function printers/fax machines, game consoles, and STBs.

The IC includes on-chip PLL supporting reference frequencies between 9MHz and 40MHz, power conservation modes, sigma-delta converter with programmable sample rates, and differential hybrid circuitry.

It can be configured for CTR-21, FCC, and other telecommunications standards worldwide, and has the ability to support third party, high-speed data pumps on the same PCB.

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